We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
Dear Friends, I am new to USB development in LPC2378. I have taken USB device driver from the following path
C:\Keil\ARM\Boards\Keil\MCB2300\USBCDC
But it's not installing the driver file in PC. Its showing USB Device Not Recognized and Unknown device.what should i change in that code.Is there any modifications?
Hi,
I did not change the code including VID/PID. whenever, if i switch ON my board, 1. "Found new hardware (USB Device)" appears 2. "Found new hardware (Unknown Device)" appears 3. "Welcome to the Found New Hardware Wizard" pop up window has not appeared But 4. "Finally your hardware is installed and ready to use" appears
But COM port is not assigned for my device and driver is not installed
May i know the problem?
thanks, venkat v
Have you ever used the Device Manager of Windows?
[Control Panel] -> [System] -> [Hardware] -> [Device Manager]
Plug/unplug your USBCDC device to see what device appears/disappears in the Device Manager.
Remove that device / Remove the driver of that device.
Then reinstall the correct driver.
Hope this helps.
Hi, I knew about Device manager in Windows..
The same method already we tried after appearing the "Your Hardware is installed and ready to use" window. But after installing the correct driver again it was showing "Unknown device".
Maybe see this:
www.techrepublic.com/.../6017628
List all the non-present USB devices, delete them.
I am using LPC2378 USBCDC code from keil,it works but the problem is, I transmit a data from serial to usb and usb to serial. I received some symbols instead of actual data.
Give me any solution for this problem
Thanks, Sathish.